Process for manufacturing bag frames



Sept. '25, 1923 F. A. FULLER PROCESS FOR MANUFACTURING BAG FRAMES File d June 18, 1921 r 1 1, r I

ATTORNEY Patented Sept. 125, i923.

V FRANZ- A.

rieocsss' r03 m me eegie ip nga o alea J ne 18, 1921i Serial mlivaeei." f i ToaZZ whom it may; @ncefh: :7.

Be 1 it kneW n that; I, FRANZ n Frill-Leia,

}a citizen of the Unitecl' State s, residing in a r the city of Newark inthe empty of Essex and State 'ovffNew Jersey, h s

e invente l- -certain 11eW and useful; lmpror Processes fer lllanufacturing Bag Frames; ,and I do hereby cleeiare the feilowiiig tdhe a full, clear, and:exaetgdeseripti dii 9f the 1 10 inventlom-such v521s Wlll enable othersskihecl in the art to which itpertairisto gnalregeoneinents; in

{ f my, ave-mar wiiijsimilltnjeusly a scribe 'the product ofth'e same, sethatithosefl skilled in; the art to which it pertailns,

FULLER; er NEWABK, New ERSEY, essrerrbie fro HE E. member 00.,

or NEWARK, ."NEW anns sryecorarcreexrron"er anruemv ian.

may .gain a -I"ullffkn0wled 'e 0'ftheiprocess,

as Welles "of the prod i'ctf'l V V The present invention, asqprerieusly stated, relates t0; aniiiiproyed preeess for i ma ufacturmgframes for bags a glpurses,"

str ict, and use the same, referencebeing-hacl J to theraccompanying draw1ngs, and t01nu-j.

and more particularly for travelling,

. chate, lame simi erbags These bagfframes -ar i many instances; Liqshaijfidinx crass Sectign so a h al st the. bag ma be secured within theframejmembers; ar d form a partof this specification. v

it is desirable inmanyi stances te 'terhfi the merals" of reference ,marked thereon, 'Whie-h This invention has reference.te irnprovle ments in the manufacture'of'fiames fer bags v and purses,- especially for travellingyichate laine and similar-bags; v if 1 0 @he object of'my inveti on is tolovereome present jclifiiculties in; dispensing with; the numerous simple means fer conneetingthe ppivot members with the main: bodyflpf the frame seetion, in order to pro clneie a bag' frame 1 with' 'sharp angular COI11E1$,H by 'ma'king a: framerem one pieeeer" inaterialp thereby producinga neat,;-sharp and solid flcorner angleg-freefrom; openjqints,; and -one-in which the'c'racking:orgpuckering of the process described in my Patent Ne; the metal Tat-the cornersof the frame clur- $O5 'Z ,",Mareh l8, 19l3,,in whih a hl'a nk cingtheprocess of the. manufacture of the ,jof uniform viclthw as employed ahdiwhich .jsame, isentirely-oVeremfne; 1 *was welliacl'aptetlfid "the use (if 'lh fifllsl f 7 In thejaccempanying drawings forming ythe softer; varieties, buhmy'preseiitiproca partefthis speeifieati0n; Figure 1 illustrateslthe blank which subseql ently terms the ,zbagkrframe' member; prep aratory t0 channeling; the mei'nlier and i 5 making the bend to :forin the square corner.

Fig 2 illustrates the V blankeafter being channeled. I a 1 Fig.3 illustrates-aplan view'of thesaine. Figset, 5,'6,,7,-8,-9, l0 and,lljjrepresent, av respectively, fragmentary-views and trans- ;,verse, sections of ,thbag frame-member illustrating the progressivestepsfof -formw,

ing the sharp corners. I I I fjfernithe corners thereof, ThisQmethOclef ,FigJlZillustrates a frontreevatien of a. .preeedur'e islobjeetioilablefhoweirer, in that a -fr d 1 7 l a r ,a joint musthbeffermed at thef-cernerspf Fig. "13 illustrates a eress-seetio'n bfthesthe bag frameQWhrch'nOtxonly materially, same. if: 1 5-: 7 impairs th i em ce of the franie'hut Similar numeralsfot referenee-refer to like, which also j ppeiis frequently after the bag :parts throughoutthe specifieationafil draw-j hasibeen inuse for a she-rt perie cl 7 f p Q present method enables the'fermat en e; a a.

' In describing-theprocessLformihg a part, bag Oitllls character 0f rrietal :801 reasoris of economy and durability it is desirable in many instancesj to, forini these frames or" hard l sheet metal and with V the fmethocls heretefere practicedflitiha's been fennel practically impessible to form 7 bag 7 frames of this character by a benclihgoper ,ation without materially" weakening the frame at the corners thereof and causing] the metal to" puek er at wsi eh peints whicl1 frequently causes the hag frame to: Crack and ialso'presents a'n'unseemly' appearance. Hitherto jb'ag frames 9f the, character cle 'serib'e'cllhave been made iinaecordarice with ihajrcllinetal and "for that i q en z agblahk "0i .iiniform wi clthis dispensed with timid-3i blank Jnsed which is provided with -enl'arged pertiens; intermediate or". its ends, the ehlargecl po rtions of said blank siibseqirentlyconstitutingthe inside corners Ofth'e 'fraine. To ebviatethis objection, the geiieral practice has been to make sharp. corner-eel ibag frames "of this character, when" hard metal isfiisecl, by-"euttiilg 'away 'a portiori of'the lfmet alto facilitate bendingof the same to'r bag frames ,with sharp angnl'areerners 1' 70- enlargedportions 3-3.

and having sharp angular corners without forming any joints or se me the corners thereof, the bag frame being formed insuch a manner that no puckers or crimps are formed in the sidewa ls thereof." th

corners and that the corners thereof after frame member 4 with sharp corners, the blank 1 1s first placedin a suitable die and the central portio'n'ofthe blank 1 is chan nellfed along the dotted linesv ofFigure 1, so

that a cross-section'is, as showninigure 5,"

and a side elevationis as shown inliigure 2. It will, be seen from an JIISPGCQQII of Figure 2,, thatthei blank when channeled. as described is also simultaneously formedwith the cusps 5 5 on theupper side and the" notches ordepressed portions-6+6on the V p H V I V ber U-shaped m crosssection-, forming said channeled member with'notc'hesin the edges opposite or underside.

After the blank 1 ischanneled, and providedwith the cusps and notches as heretofore described, the hin emembers 7 7 are bent at'right angles to the main body memberj7, as illustrated in Figures at, 6, 8 and 10.

The cusps 5-''5 willfbe found to contain a sufficient amount of mateiiai proricleclfor by the enlarged portions 3-3 of the blank so as to stretch around the angleiof the bend without weakening thesame. f

,To c'omplete the frame member 4' withv sharp corners after the blank lhas been placed in asuitable-die and thecentral portion thereof channeled along the dotted lines ofFigurel which has a cross-section as il'- lustrated in Figure 5, the frame'inemberis j subjected to several pressing operations each one'of. which compresses the channelof the frame member more and more as clearly ndicated in ri ures 6; 7f 8, 9 l0 and. 11 in corners and the channel.

In Figured it will be n'oticedfthat the corner 8 of the frame member is provided with a surplusage of metal, which when the frame member is subjected to another pressing operation results in the frame illustrated in Fi ures 6 and 7. the rounded corners 9 having' been made more square and the channel morecontracted. The framemember when subjected to another; pressing operation ,re'

sults in the frame illustratedin Figures 8: and 9 in which the cornerlOis practically "square and the channel furthercontracted.

A final pressing operation results'in the sharp corner 11 and the completed cha nnel12.

Intermedi ate To complete the which the last operation'completes the sharp v h a metal frames con'sisting'ln forming a fiat sheet metal blank, provided with enlarged The progressive pressing operations above described cause the surplusage of metal at the enlarged portions 33 of the blank 1 to, be gradually and evenly forced into the cor ner ofthe frame thereby produc ng a corner whichis equa'llyas strong, if not stronger, as any other portion of the frame. It is to operations is governed by the depth of the channel; a frame of less depth requiring fewer pressing operations.

By the'process described, I am enabled to be understood that the numberv of'pressing produce a bag frame member which is com-i posed of asingle piece of metal, andwi'tliout the usual open olntsand angled connections, and yet, by theexerclse ofthis process, I am.

abletoproduce the frame with a minimum of waste material,andatthe same ti 1ne',pre-

serve maximums strength fat I the hitherto weakenedpointsjintheframe,

I Having thus described. y invention, what" r I desire l0; secure byLett-ers Patent, is 1. The process offforming channeled sheet metal frames consisting in; forming" a flat sheet metal blank, provided with enlarged portions intermediate its ends, bending said blanktransversely to form a channeled mem- 2. The process of forming" sheet metal frames consisting in forming a flat sheet metal blanl r, provided withenlarged port-ions intermediate' its' ends, channeling the' central portion of said blank longitudinally andsi multaneo'us'l'y fornii'ngfc'usps projecting from the upper wall of said channeled ortion 'of the blank at said enlarged portions and notches adjacent saidrcusps *in the edges of the side walls of the channeled portions of the bianlg aad' bending the blank at the" notched portionsthereof to form a completed member'with sharp corners; p a I V 3, The processof" forming channeled sheet portions intermediate'its ends, bending said blank transversely to form a channeled member U -shaped in cross-section, forming said channeled member w th notches'm the edges of the side walls thereof and with cusps projecting from the top wall thereof-at said enlarged portions, and bending the channeled member at the notches in the side walls thereof to form the hinge members of the frame, and thereafter pressing the blank to form: a

* completed member with sharp cornersj.

I 4. The process of forming vsheet metal frames consisting in forming a fiat'sheet metalbl-ank,provided with enlarged portions iz l termed iate its endsflha-nneling the cerltral pressing the blank to f brm a cpniplet edrfieiu- 10 J portionsof said blank longitudinally and sibet with sharpcor'ner s. multaneously forming cusps projecting from V V the upper wall of said channeled portion of thissixteenth day of"'June,-1921. the' blank. atfsaicl enlarged portion s and :f l i notches adjacent said cusps in the edges of r FRANZ A. FULLER. th'esicle Wallsof thfchanneledrportions of Witnessegsr V 7 theblank, and bending the blank atthe FRED, K C. FISCHER, V w notched portions thereof and vthereafiuar A. B. UNDE Ln. V 

